import java.util.Scanner;

public class main {

    public static void main(String[] args) {
        // TODO Auto-generated method stub
        Scanner Scan = new Scanner(System.in);
        
        int z,checkinhour,checkinmin,checkouthour,checkoutmin,pay,tax,total,checkin,checkout,usedtime,usedhour=0,usedmin=0;
        double x;
        
       cout << "당구장 요금 계산 program" << endl;

.
.
.

가끔 피곤하면 이런 경우가...